2 years ago

marca la respueta correcta el termino general de la sucesion 3,6,9,12,15, es.: a-2n b-3n c-n2 ayudaaaaa

Mathematics

1 answer:

Alex787 [66]2 years ago

8 0

Please type English 2

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A scientist has 100 milligrams of a radioactive element. The amount of radioactive element remaining after t days can be determi

grandymaker [24]

The mass of the first shipment at time t is
$m_{1}=100( \frac{1}{2} )^{ \frac{t}{10}}$

The mass of the second shipment at time t is
$m_{2}=100( \frac{1}{2} )^{ \frac{t-3}{10} }$

At time t, the ratio of m₁ to m₂ is
$\frac{m_{1}}{m_{2}} = \frac{100}{100}. \frac{(1/2)^{t/10}}{(1/2)^{(t-3)/10}} \\ = \frac{(1/2)^{t/10}}{(1/2)^{t/10}}. \frac{1}{(1/2)^{-3/10}} \\ = (1/2)^{3/10} \\ = 0.8123$

Therefore as a percentage,
$\frac{m_{1}}{m_{2}} =100*0.8123 = 81.23 \%$

Answer: B. 81.2%

4 0

4 years ago

Peggy rode her bike 25 miles in 2 hours. At this rate, how far will she ride in 3 hours?

Zanzabum

37.5 miles

divide 25 by 2, that gives you 12.5
multiply 12.5 by 3 to get 37.5

3 0

3 years ago

Jami is keeping track of the weather for a class project she recorded data on 16 days out of 16 days 1/4 were clear blue skies h

katovenus [111]

Answer:

4 days

Step-by-step explanation:

She recorded date for 16 days, and 1/4 of the days were clear blue skies.

One way to find this is to multiply 16 and 1/4

16*1/4=4

Another way is to first convert 1/4 to a decimal

1/4=0.25

Then multiply 16 and 0.25

16*0.25 =4

So, 4 out of 16 days had clear blue skies

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3 years ago

Solve for m. 4 = 20m Simplify your answer as much as possible.

iris [78.8K]

Answer:

0.2

Step-by-step explanation:

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3 years ago

What is 8,100 in scientific notation?

Rzqust [24]

8.1 I think but there's an app called, tiger something and it tells,you the answers

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3 years ago